pkg/mime: layout as mini-libraries

pkg/mime/lib/src/default_extension_map.dart

Index: pkg/mime/lib/src/default_extension_map.dart
diff --git a/pkg/mime/lib/src/extension_map.dart b/pkg/mime/lib/src/default_extension_map.dart
similarity index 99%
rename from pkg/mime/lib/src/extension_map.dart
rename to pkg/mime/lib/src/default_extension_map.dart
index 745556b540b0954e799295609549877575a9dd10..7e74648d3f6a062e5c130a34382887747ea1710b 100644
--- a/pkg/mime/lib/src/extension_map.dart
+++ b/pkg/mime/lib/src/default_extension_map.dart
@@ -2,11 +2,10 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of mime;
-
+library mime.extension_map;
 
 // TODO(ajohnsen): Use sorted list and binary search?
-const Map<String, String> _DEFAULT_EXTENSION_MAP = const <String, String>{
+const Map<String, String> DEFAULT_EXTENSION_MAP = const <String, String>{

[Anders Johnsen, 2014/05/13 09:16:22]

Please un-const this. Const maps are really slow for lookups.

[kevmoo, 2014/05/13 17:48:39]

Are they different than a normal LinkedHashMap?

I can't imagine that this lookup would be anywhere close to critical performance
path for any user of this library.

Perhaps we should use a HashMap instead?

[Anders Johnsen, 2014/05/14 07:36:07]

Please don't commit while there are comments.

Const-maps lookups are linear, so we compare against ~1000 strings to find a
single entry.

 '123':'application/vnd.lotus-1-2-3',
 '3dml':'text/vnd.in3d.3dml',
 '3ds':'image/x-3ds',